The 24-7 Series Eco Tec Knit Camp Shirt contains Repreve 100% polyester made from recycled plastic bottles and provides quality features like no pill, no snag durability, 4-way stretch, anti-microbial and moisture wicking abilities and provides 30+ UV protection. Repreve is one of the most certified, earth-friendly fibers available in the world. Products made with Repreve help conserve energy and natural resources, giving our customer another great reason to recycle.